B24B 3/33
Of drills for stone
Official title: of drills for stone
B24B3/33 (Of drills for stone) appears on 25 US grants and 17 published applications in this corpus.
Search patents in B24B- Granted patents
- 25
- Published applications
- 17
- Assignees
- 9
- Inventors
- 22
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Grinding tool for grinding buttons on a rock drill bit2 Jun 2026US 12,643,158 B2C.M.E. Blasting & Mining Equipment Ltd.
- Control system for grinding apparatus20 May 2025US 12,303,983 B2C.M.E. Blasting & Mining Equipment Ltd.
- Polycrystalline diamond compact cutting elements, methods of forming same and earth-boring tools17 Dec 2024US 12,168,281 B2Baker Hughes Oilfield Operations LLC
- Grinding apparatus with load control14 Aug 2018US 10,046,435 B2C.M.E. Blasting & Mining Equipment Ltd.
- Manual locking means for bit holder with micro/macro adjustment9 Sep 2014US 8,827,773 B2C.M.E. Blasting & Mining Equipment Ltd.
- Polycrystalline diamond compact cutting elements, methods of forming same and earth-boring tools13 Jul 2023US 2023/0219185 A1Baker Hughes Oilfield Operations LLC
- Improved control system for grinding apparatus29 Dec 2022US 2022/0410342 A1C.M.E. Blasting & Mining Equipment Ltd.
- Grinding tool for grinding buttons on a rock drill bit17 Nov 2022US 2022/0362861 A1C.M.E. Blasting & Mining Equipment Ltd.
- Polishing systems and methods for polishing complex polycrystalline diamond compact geometries29 Aug 2019US 2019/0262961 A1Baker Hughes, A Ge Company, LLC
- Grinding tool for buttons on a rock drill bit26 Oct 2017US 2017/0304983 A1C.M.E. Blasting & Mining Equipment Ltd.
Most cited
By later US patents
- Abrasive wheel27US 4,977,709 AInovac AB · 1990
- Self-centering arrangement for grinding the hardmetal pins of drill bits20US 5,070,654 AC.M.E. Blasting & Mining Equipment Ltd. · 1991
- Grinding cup and holder device19US 5,639,273 AC.M.E. Blasting & Mining Equipment Ltd. · 1997
- Grinding guide assembly for a hand-held grinding machine for buttons of a button drill bit10US 5,138,797 AInovac AB · 1992
- Grinding cup and holder device10US 5,727,994 A1998